Display shows H0 or 'HO' and cooker does not heat as expected.

Safety: Ensure the cooker is on a stable, heat‑resistant surface.

Steps:

• Check manual: On some Russell Hobbs models, H0 simply indicates a keep‑warm or holding mode. Confirm in the user manual whether this is an error or a status code.
• Cancel and reselect program: Press Cancel/Off, then select a full cooking program (e.g. Rice, Stew) and start again.
• Power cycle: Unplug for 5–10 minutes, then retry. If H0 appears immediately and no heating occurs, treat it as a sensor/control fault.
• Inspect sensor and wiring: Follow the same checks as for E1/E2: verify the NTC sensor and wiring harness are intact and properly connected.

Note: If the code is not documented in the manual and persists, contact Russell Hobbs support or a technician for model‑specific diagnosis.